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Golden Gate National Parks Phytophthora Response Plan

Alisa Shor, Director of Park Nurseries

Golden Gate National Parks Conservancy

Responding to an Expanding Threat: Exotic Phytophthora Species in Native Plant

Nurseries, Restoration Plantings, and Wildlands

Tuesday, December 2, 2014, 8:30 am-4:30 pm

Location: Log Cabin Site Visit: Presidio Native Plant Nursery

Pic of volunteers potwashing

Nursery Year

# of Plants From Which Material Was

Collected # of Plate Samples

Analyzed

# of Positive Phytophthora

Detections

Percent Positive

Detections

Presidio 1 1925 202 16 8%

2 852 141 0 0%

Fort Funston 1 22 22 2 9%

2 450 84 1 1%

Tennessee Valley

1 34 34 4 12%

2 400 374 17 5%

Marin Headlands

1 38 38 0 0%

2 1100 116 0 0%

Oceana 1 11 11 0 0%

2 50 36 0 0%

Redwood Creek

1 23 23 2 9%

2 - - - -

Nursery Sampling Data

Nursery Year

# of Plants From Which Material Was

Collected # of Plate Samples

Analyzed # of Positive Detections

Percent Positive

Detections

Presidio 1 1925 202 16 8%

2 852 141 0 0%

Fort Funston 1 22 22 2 9%

2 450 84 1 1%

Tennessee Valley

1 34 34 4 12%

2 400 374 17 5%

Marin Headlands

1 38 38 0 0%

2 1100 116 0 0%

Oceana 1 11 11 0 0%

2 50 36 0 0%

Redwood Creek

1 23 23 2 9%

2 - - - -

Nursery Sampling Data

19 Native plant host detections: • Achillea millefolium • Aesculus californica • Alnus rubra • Arctostaphylos franciscana • Castilleja sp. • Ceanothus thrysiflorus • Cornus sericea • Corylus cornuta • Eriogonum latifolia • Frangula (Rhamnus) californica • Heteromeles arbutifolia • Juncus effesus • Juncus xiphioides • Lonicera hispidula • Lonicera involucrata • Myrica(Morella) californica • Quercus agrifolia • Rhododendron occidentale • Rubus ursinus

9 Phytophthora species detected on nursery container stock: • P. cactorum • P. citricola • P. crassamura • P. cryptogea • P. hedraiandra • P. megasperma • P. multivora • P. plurivora • P. sp.

2 species not detected in the field to date: P. plurivora and P. citricola

Nursery Detections

15 Native plant host detections: • Achillea millefolium • Anaphalis margaritacea • Artemisia californica • Baccharis pilularis • Ceanothus thrysiflorus • Elymus glaucus • Eriophyllum stachaedifolium • Frangula (Rhamnus) californica • Heteromeles arbutifolia • Juncus patens • Lupinus arboreous • Mimulus aurantiacus • Myrica (Morella) californica • Quercus agrifolia • Stuckenia pectinata

15 Phytophthora species detected in field samples:

• P. cactorum • P. cambivora • P. crassamura • P. cryptogea • P. drechsleri • P. gonapodyides • P. hedraiandra • P. inundata • P. kelmania • P. megasperma • P. multivora • P. Pg chlamydo • P. rosacearum • P. thermophila • P. sp.

8 species not detected in the nursery to date: P. cambivora, P. inundata, P. drechsleri, P. Pg clamydo, P. thermophila, P. gonopodyides, P. rosacearum, and P. kelmania

Field Detections

Expense Type Total to Date

Sanitation Supplies, Equipment and Infrastructure

$23,470

Consultant Fees $40,576

Lab Fees and Testing Expenses $68,625

Misc. Expenses $3,487

Capital Improvements $131,867

Estimated Value of Plants Destroyed $123,500

Estimated Labor—Nursery Staff Only $187,700

TOTAL $579,225

Costs: December 2014 to Present

Expense Type Total to Date

Sanitation Supplies—Ongoing Annual $8,500

Consultant Fees $5,000

Testing 2016 Plant Lots $18,000

Development of NPS Field BMPs $10,000

Capital Improvements for Infrastructure and Sanitation $154,000

Labor—Nursery Staff Only Ongoing Annual

$140,000

TOTAL $335,500

Estimated Future Costs

Golden Gate National Parks Conservancy

Anna Murray

Annette Russell

Brian Teng

Christina Crooker

Desmond Murray

Ely Huerta Ortiz

Garrett Lee

John Doyle

Liz Ponzini

Meghan Steinharter

Paul Myers

Rebecca Blanck-Weiss

Robin Binaoro

Sharon Farrell

Stacy Jacobson

Maria Durana

Paul Bergkamp

Jasmine Anenberg

Iris Vien

Matthew Weiss

Sze-Wing Lau

Lauren Jenkins

Kristen Jones

National Park Service

Alison Forrestel

Presidio Trust

Abby Morris

Amy Mautz

Brett Stevenson

Christa Conforti

David Harelson

Lew Stringer

Terri Thomas

Brian Hildebidle

John Fossen

Andy Baird

California Department of Food and Agriculture

Cheryl Bloomquist

Kathy Kosta

Suzanne Rooney Latham

California Native Nursery Network

Diana Benner, The Watershed Nursery

Theo Fitanides, East Bay Regional Parks Botanic Garden

Michelle Krieg, Friends of Sausal Creek

San Francisco Recreation and Parks

Carolyn Adams

Kirra Swenerton

Working Group on Phytophthoras in Native Habitats

Greg Lyman, San Francisco Public Works Commission

Janell Hillman, Santa Clara Valley Water District

Janice Alexander, UC Cooperative Extension, Marin County

Karen Suslow, National Ornamental Research Site, Dominican University of California

Laura Lee Sims, UC Berkeley Forest Pathology and Mycology Lab

Mia Ingolia, San Francisco Public Works Commission

Susan Frankel, US Forest Service, Pacific Southwest Research Station

Ted Sweicki, Phytosphere Research